
Continuity mistake: After Miranda sings for the hotel manager, her guitar case closes and zips itself in a split-second.

Continuity mistake: When Linda Blair deliberately knocks a plate of desserts into one of her suitor's lap, the tray hits him directly in the crotch and the camera shows this. Then there is a cut to Linda Blair's face and then a cut back to the boys clothing and the scene now shows the desserts all over his suit from the shoulders down.

Continuity mistake: Sean and Emily spend the night on a boat after her first mob. The blanket lies differently in consecutive shots. (00:45:25)

Continuity mistake: When John C. Reilly is in the dressing room telling the airplane story, the time changes back and forth on the clock behind him.

Continuity mistake: The young son of the Chinese owner of the violin is near-sighted and his glasses have concave lenses. When he attends the auction as an adult he is far-sighted with incredibly thick convex lenses.

Continuity mistake: When he puts the pins in her eyes, evey time it is shown it's different - sometimes they are all covered in blood, sometimes only some of them or one, and sometimes there's no blood at all.

Continuity mistake: When LV begins her big concert, she carries a microphone on a cord. But after her first song, a stand instantly appears on stage without any stage hand moving from the wings.

Continuity mistake: When Ren is dancing at the drive in, he starts dancing with a girl then stops to watch her. When he starts dancing again he moves slightly in front of her in the shot. Then in the next shot they are side by side.

Continuity mistake: Ben Bart passed away earlier in the film but can be seen dancing on stage with the character Gertrude, at a James Brown concert where he is performing "I Got Soul (Super Bad) ". (01:46:00)
Suggested correction: During that sequence, they intercut James in his gold jumpsuit, with long hanging-down hair, and James in a black-and-white checked vest, doing the same song. In the black-and-white vest era, Ben Bart is still alive, so the dancing could have been from that era.
While that does seem to be the case, it should be pointed out that Ben Bart died in 1968, but the song James Brown is singing, "Super Bad", was recorded in 1970.

Continuity mistake: When the van stops and Fish's body is sent flying away, the position of his body on the ground differs between shots.

Continuity mistake: The giant maker compound was purple when Franqcuer was created, but it turned orange when Lucille made another giant flea.

Continuity mistake: When Shaggy and Scooby are approaching the Demon as he eats, it is shown that he is eating from a platter of hamburgers and french fries. Scooby and Shaggy bump into his table, knocking the food all on the floor. When Shaggy and Scooby quickly put all of the food back on the table, it now has french fries and hot dogs.

Continuity mistake: When Priscilla meets Elvis in Germany the position of the letters on the bed and of the papers scattered on the floor change positions between shots.

Continuity mistake: When Garfield chases after a pink cave cat, he bumps head first into the caveman. Between shots, Garfield moves a few feet away from the caveman. (00:03:25)

Continuity mistake: After Bugs Bunny has snipped off Elmer Fudd's pants suspender buttons, you can see Elmer's gun is directly behind him. But when Elmer picks up his gun to try and shoot Bugs, the gun is now by his foot.

Continuity mistake: The school house says "Or would you rather be a fish?" as Lulu plummets into the water around the letter blocks the school house is sitting on. She lands in the water next to two blocks reading F and C, the F block being a light blue and the C block being a slightly darker blue. But when it cuts to a close up of her in the water, both blocks are suddenly a very dark blue. (00:05:15)

Continuity mistake: When the father pulls the cover off the toy castle that's Drosselmeier's gift to Marie and Fritz, there are no soldiers visible in or on any of the towers. But when there is a close up of Marie asking how Drosselmeier got in, there is a soldier on the tower next to her head. Then the camera cuts to a different angle as Drosselmeier approaches and the same tower is visible, but with no soldier.

Continuity mistake: When the moderator tells Lydia "I couldn't help but notice you flinch just a little bit", Lydia has her right hand placed firmly on an armrest. When the shot cuts, her right hand is away from the arm rest. (00:09:15)

Continuity mistake: While Ally is in the tub talking with Jack, he says that his father has more talent than Ally. She drinks from the glass and the level changes between shots.

Continuity mistake: When Poochini is rehearsing, Mysto the Magician knocks on the door of his dressing room. At this point, you can see that the handle is on the left hand side of the door, but when Poochini opens the door, he opens it from the right hand side.